Toyota Corolla (E170): Using the steering wheel switches

The steering wheel switches can be used to operate a connected cellular phone or portable digital audio player (portable player).

Operating a Bluetooth® phone using the steering wheel switches

1 Volume
The voice guidance volume cannot be adjusted using these buttons.

2 Off-hook switch
Turns the hands-free system on/starts a call 3 On-hook switch Turns the hands-free system off/ends a call/refuses a call

Registering a Bluetooth® device

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    Circuit description
    The purpose of this circuit is to prevent the engine from stalling while driving in lock–up condition, when brakes are suddenly applied. When the brake pedal is depressed, this switch sends a signals to the ecm. Then the ecm cancels the operation of the lock–up clutch while braking is i ...

    Pre–check
    1. Selecting compass display mode  the compass switch allows you to select the display or non–display mode of the compass. 2. Setting zone  deviation between the ”magnetic north” and ”actual north” differs depending on the location. Therefore, adjustment of the ...

    Inspection procedure
    1 Inspect dlc3 terminal voltage(ts terminal) Turn the ignition switch to on. measure voltage between terminals ts and cg of dlc3. Ok: voltage: 10 – 14 v 2 Check harness and connector(dlc3 – body ground) Check for open and short circuit in harness and connector between ...